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Sponges
Aquatic invertebrates belonging to the phylum Porifera having internal skeletons of silica or collagen, porous body around a cavity or cavities, and usually living in stationary communities.
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Biological resource status and trends: Corals and sponges [More info]
Information concerning status and trends of biological resources, focusing on corals and sponges
Nonindigenous sponge distribution information [More info]
Descriptions of sponges and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on sponges.
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